Split slitter

Abstract

There is provided a cylindrical shaped slitter including first and second semicircular halves which may be connected together in only one possible way and having precision dynamic balancing. Each half has first and second mating ends. A land projects from the first mating surface of each half and a recess is received in the second mating end of each half. The recess in the first half receives the land from the second half, and the recess in the second half receives the land from the first half, thereby preventing axial and radial movement of the first and second halves relative to one another after they are connected together.

What is claimed is: 
     
       1. A cylindrical shaped member comprising: first and second substantially semi-circular halves connectable and detachable from one another; each half having first and second mating ends;   said first mating end for each half including a first surface having a land projecting therefrom;   said second mating end for each half including a second surface having a major recess therein;   said major recess in said second surface of said first half receiving at least a portion of a corresponding land from said second half;   said major recess in said second surface of said second half receiving at least a portion of said corresponding land from said first half; said first mating end of said first half being engageable with said second mating end of said second half, said first mating end of said first half not being engageable with said first mating end of said second half whereby said first and second halves may be connected together only in one way to form said cylindrical shaped member, and whereby axial and radial movement of said first and second halves is inhibited when said first and second halves are connected together;   each of said semi-circular halves including an outer curved surface and an inner curved surface;   each of said lands including a first ledge adjacent to said outer curved surface and a second ledge adjacent to said inner curved surface;   each ledge having a top surface;   each of said halves including first and second opposed marginal faces;   a first portion of said first surface of said first mating end being located between said land and said first marginal face and a second portion of said first surface of said first mating and being located between said land and said second marginal face;   said lands each including a rectilinear cap extending above said top surface of each of said ledges; said rectilinear cap from said first half including a top surface for engaging with the major portion of said recess of said second half;   each of said lands includes first and second walls respectively extending above said top surfaces of said first and second ledges; said first wall extending from said top surface of said first ledge to said top surface of said cap; said second wall extending from said top surface of said second ledge to said top surface of said cap;   each of said lands includes a first step shaped wall adjacent to said first marginal face of each of said halves rising from said first surface to said top surface of said cap and to said top surface of each of said ledges, and a second step shaped wall adjacent to said second marginal face of each of said halves rising from said first surface to the top surface of said cap and to said top surface of each of said ledges.   
     
     
       2. A member as set forth in claim 1, further including a bored hole extending from said top surface of each of said rectilinear cap to the outer periphery curved surface of each of said halves. 
     
     
       3. A member as set forth in claim 2, wherein said second mating end for each half includes first, second, third and fourth legs extending therefrom; each leg including a bottom surface for engagement with said first surface of said first mating end of the other half. 
     
     
       4. A member as set forth in claim 3, further including first and second minor recesses located adjacent to said major recess of said second mating end; said first minor recess adjacent to said outer curved surface; said second minor recess located adjacent to said inner curved surface; said first minor recess engageable with said first ledge of said land; said second minor recess engageable with said second ledge of said land; said major recess being deeper than said minor recesses. 
     
     
       5. A member as set forth in claim 4, wherein said second mating end including first and second walls extending from said minor recesses to the bottom surface of said major recess; said first wall of said land for engagement with said first wall of said recess, and said second wall of said land for engagement with said second wall of said recess thereby inhibiting the radial movement of said first and second halves. 
     
     
       6. A member as set forth in claim 5, wherein said first and third legs engaging with said first step shaped wall and said second and fourth legs engaging with said second step shaped wall whereby the movement of said halves in said axial direction is inhibited. 
     
     
       7. A member as set forth in claim 6, further including a bored hole in said bottom surface of each of said major recess extending to said outer curved surface; said bored hole in said bottom surface of said major recess aligning with said bored hole in said land. 
     
     
       8. A member as set forth in claim 7, wherein said bored holes extending from each of said lands to said outer curved surface each receive a threaded screw; said bored holes extending from said lands, each including a shoulder for engagement with the head of said screw, whereby said first and second halves are substantially balanced. 
     
     
       9. A member as set forth in claim 1, wherein said member is a slitter. 
     
     
       10. A member as set forth in claim 1, wherein said member is an anvil. 
     
     
       11. A member as set forth in claim 1, wherein said member is a spacer. 
     
     
       12. A cylindrical shaped member which may be used as a slitter and an anvil or a spacer comprising: first and second substantially semi-circular halves connectable and detachable from one another; each half having first and second mating ends;   said first mating end for each half including a first surface having a land projecting therefrom;   said second mating end for each half including a second surface having a major recess therein;   said major recess in said second surface of said first half receiving at least a portion of a corresponding land from said second half;   said major recess in said second surface of said second half receiving at least a portion of said corresponding land from said first half; said first mating end of said first half being engageable with said second mating end of said second half, said first mating end of said first half not being engageable with said first mating end of said second half whereby said first and second halves may be connected together only in one way to form said cylindrical shaped member, and whereby axial and radial movement of said first and second halves is inhibited when said first and second halves are connected together;   each of said semi-circular halves including an outer curved surface and an inner curved surface;   each of said lands including a first ledge adjacent to said outer curved surface and a second ledge adjacent to said inner curved surface; each ledge having a top surface;   each of said halves including first and second opposed marginal faces;   a first portion of said first surface of said first mating end being located between said land and said first marginal face, and a second portion of said first surface of said first mating end being located between said land and said second marginal face; said lands each including a rectilinear cap extending above said top surface of each of said ledges; said rectilinear cap from said first half including atop surface for engaging with a major portion of said recess of said second half;   a bored hole extending from said top surface of each of said rectilinear caps to the outer periphery curved surface of each of said halves;   said second mating end for each half includes first, second, third and fourth legs extending therefrom; each leg including a bottom surface for engagement with said first surface of said first mating end of the other half;   first and second minor recesses located adjacent to said major recess of said second mating end; said first minor recess being adjacent to said outer curved surface; said second minor recess being adjacent to said inner curved surface; said first minor recess engageable with said first ledge of said land; said second minor recess engageable with said second ledge of said land; said major recess being deeper than said minor recesses; said lands include first and second walls respectively extending above said top surfaces of said first and second ledges; said first wall extending from the top surface of said first ledge to said top surface of said cap; said second wall extending from the top surface of said second ledge to said top surface of said cap; said second mating end including first and second walls extending from said minor recesses to the bottom surface of said major recess; said first wall of said land for engagement with said first wall of said recess and said second wall of said land for engagement with said second wall of said recess thereby inhibiting the radial movement of said first and second halves;   each of said lands includes a first step shaped wall adjacent to said first marginal face of each of said halves rising from said first surface to said top surface of said cap and to said top surface of each of said ledges, and a second step shaped wall adjacent to said second marginal face of each of said halves rising from said first surface to said top surface of said cap and to said top surface of each of said ledges; said first and third legs engaging with said first step shaped wall and said second and fourth legs engaging with said second step shaped wall whereby the movement of said halves in the axial direction is inhibited;   a bored hole in said bottom surface of each of said major recesses extending to said outer curved surface; said bored hole in said bottom surface of said major recess aligning with said bored hole in said land; said bored holes extending from each of said lands to said outer curved surface each adapted to receive a threaded screw; said bored holes extending from said lands each including a shoulder for engagement with the head of said screw whereby said first and second halves are substantially balanced.